How do phone microphones remain waterproof but also pickup sound waves?
In: Engineering
My understanding of how microphones work is that they’re the same as the eardrum. Basically a flat surface (like the skin of a drum) is blasted by sound waves (which aren’t ‘up and down’ waves, they’re ‘in and out’ waves). On the other side, a sensor detects the vibrations on the drum and then converts them to electrical signals representing sounds. There’s no hole that water could get into, the sensor is a flat surface.
But you might want to wait for someone who knows what they’re talking about to come along
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